This project began as I prepared for some long range shooting at Accuracy First, located in Canadian, Texas. Most of the class members were repeat customers while I would be one of the newbies. While the majority of the class planned on using a 308 with the 175 grain Sierra MatchKing (SMK), I hoped to use a round with a higher BC and muzzle velocity - you know, if you can't beat them with skill, try to beat them with technology. For mile shooting, it's been suggested that you choose a bullet that transitions well into subsonic flight, even if that means you're not choosing a bullet that has the highest BC. Of course the ideal solution is a bullet that has both a high BC and transitions well. I read of shooters having success at a mile using the high BC 6.5mm 140 grain A-MAX and 142 grain SMK bullets. I contacted Robert Silvers at AAC and asked him what kind of accuracy I could expect from the fast twist AAC 260 Remington barrels. He responded with an offer to let me try five of the barrels and then choose the one I wanted, if any. Sounded like a plan to me, since I already had about 1200 mid to heavy weight 6.5mm bullets on hand (for my 6.5 RathuvAL).
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